JPH11138055A - Water purification shower head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water purification shower head with a switching device which can withstand its use of a long time and does not leak water even under a high water pressure. SOLUTION: This water purification shower head 51 is constructed of a switching device 20 for the shower head 51, an opening member 21 with an untreated water opening part 14a and a treated water opening part 15a, a spherical valve plug 22 which blocks either of these opening parts, an arm 23 which holds the spherical valve plug 22 and has a water passage hole 25a, a switching lever 27 which is connected to the arm 23 and can be operated externally and an elastic ring 28 which supports the rotation of the arms 23 and keeps the switching lever 27 watertight.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a purified water shower head which is attached to a bathtub or the like and discharges purified water from which tap water has been removed, and has an improved switching device for switching between purified water and raw water. .

[0002]

2. Description of the Related Art In recent years, hot water supply facilities have been improved, and showers that can supply water by flowing water or hot water for washing hair and body in bathing during bathing have become widespread in ordinary households. In addition, the number of times of hair washing and body washing has increased due to an increase in the tendency toward cleanliness, and the frequency of use thereof has increased, and showers have become indispensable for convenience. Most of the water or hot water supplied by the shower uses tap water as raw water, and the tap water contains a large amount of chlorine. When water containing this chlorine is used for washing hair and body, there is a problem that hair damage, discoloration, rough skin, etc. occur.

[0003] In order to solve such a problem, a dechlorinating agent such as calcium sulfite, for example, is used as a supply of purified water from which chlorine used in water or warm water used for washing hair and body is removed. Clean water shower heads have been proposed.

FIG. 5 shows an example of a conventional water-purifying shower head, and reference numeral 1 in the figure denotes a shower main body. Inside the shower body 1, a cartridge filled with a dechlorinating agent 3 made of sulfite, activated carbon, or the like is provided detachably, and tap water supplied to the shower head body 1 is supplied with tap water in the cartridge. 3 and a raw water channel 4 that does not pass therethrough are formed. A connection part 7 with a hose to which tap water is supplied is provided on the upstream side of the shower main body 1, and a shower discharge part 2 for discharging purified water or raw water is provided on the downstream side.

[0005] In this purified water shower head 50,
A switching device that allows the user to select between the purified water channel 5 and the raw water channel 4 by operating from outside is provided. The switching device includes a switching rotating unit 10. The switching rotation unit 10 is rotatably fixed to the shower main body 1 by a connection screw 8. At this time,
Water purification opening 5a connected to water purification channel 5 of shower body 1
A rubber packing 6 is attached to the raw water opening 4a connected to the raw water passage 4, and the raw water opening 4a and the purified water opening 5a are connected to the connecting portion 11 of the switching rotary unit 10 via the packing 6. It is connected in a water-sealed state.

An inflow hole 12 is formed in the continuous portion 11 so that tap water supplied from a hose can be passed through only this portion. Portion 5a and the raw water opening 4a are designed to have the same size, and the switching rotating unit 10 is provided so as to coincide with the purified water opening 5a or the raw water opening 4a when rotating, and the inflow hole 12 is formed in the purified water opening 5a. When they coincide with each other, the inflow holes 12 are formed so that tap water flows only into the water purification channel 5.
When the water coincides with the raw water opening 4a, the tap water flows only into the raw water passage 4. The movement of the inflow hole 12 is performed by rotating the switching rotation unit 10 about the connection screw 8 as an axis.

[0007]

However, in the switching device described above, the connecting portion 11 and the water purification opening 5a are provided.
Since the connection between the raw water opening 4a and the raw water opening 4a is through the packing 6, the packing 6 is constantly crushed with a constant stress in the plane portion of the connecting portion 11 of the switching device 10 to exhibit the water sealing performance. Therefore, when used for a long period of time, there is a problem that the shape stability of the packing 6 is deteriorated, and a portion to which stress is applied is deteriorated, and water leakage occurs, so that complete switching performance cannot be obtained gradually. There is also a problem that the higher the working water pressure is, the more likely water leakage occurs. Furthermore, since there is no mechanism for clearly notifying the user that the switching has been performed at the time of switching, the feeling of switching is poor and there is a problem in terms of usability. As described above, in the conventional water purifying shower head, the one provided with a switching device that can withstand long-term use, saves space and satisfies low cost, has a clear switching mechanism, and has a crisp click mechanism is obtained. Not been.

The present invention has been made in view of the above-mentioned circumstances, and maintains water-sealing performance even when used for a long period of time, does not leak water even under high water pressure, is simpler, and has a clear switching feeling for the user. It is an object of the present invention to provide a purified water shower head having a switching device capable of providing the following.

[0009]

According to a first aspect of the present invention, a cartridge accommodating a dechlorinating agent is removably mounted, and water supplied to the water purifying shower head is provided. In the purified water shower head formed by a water purification passage that passes through the dechlorination treatment agent in this cartridge and a raw water passage that does not pass through the water purifier,
A switching device for selecting between the water purification channel and the raw water channel is installed, and the switching device is provided with an opening member having a raw water opening communicating with the raw water channel and a water purification opening communicating with the water purification channel; A spherical valve element for closing one of the opening and the water purification opening, an arm having a water hole for holding the spherical valve element and transmitting water pressure to the spherical valve element, connected to the arm, An operable switching lever,
An elastic ring that supports the rotation of the arm and keeps the switching lever watertight. When the switching lever is operated from the outside, the arm and the spherical valve body move, and the water purification channel or the raw water channel. By closing either one of them, you can make that choice.

According to a second aspect of the present invention, in the first aspect, a spring for pressing the spherical valve body to the opening of the water purification passage or the raw water passage is provided on the arm.
According to a third aspect, in the first or second aspect, the spherical valve body is made of stainless steel or engineering plastic, and a rubber packing is provided on the opening member. In a fourth aspect, in the first to third aspects, a part of the outer wall of the shower head main body is formed of a transparent member, and a part of the dechlorinating agent is made visible.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 3 are sectional views showing an example of a purified water shower head of the present invention. Symbol 1 in the figure
Denotes a shower main body, and a tubular raw water passage 14 is formed in the center of the shower main body 1, and a cylindrical water-permeable cartridge containing a dechlorinating agent 13 is removably disposed therearound. Have been. Then, a water purification passage 15 through which the supplied water passes through the dechlorinating agent 13 of the cartridge is formed. On the upstream side, a switching device 20 is installed, and further on the upstream side, a hose connection portion 7 for connecting to a hose is provided.

The shower main body 1 and the switching device 20 are separated by a disc-shaped opening member 21. In the opening member 21, a raw water opening 14 a communicating with the raw water passage 14 of the shower main body 1 and a purified water opening 15 a communicating with the purified water passage 15 are formed. At this time, the shape of these openings (14a, 15a) is preferably a perfect circle,
The size can be appropriately set according to the movable range and size of the spherical valve body 22 described later.

The switching device 20 includes a spherical valve body 22,
It comprises an arm 23, a switching lever 27, and an elastic ring 28. The spherical valve body 22 fits halfway into the purified water opening 15a or the raw water opening 14a to seal them. The spherical valve element 22 shown in the figure is a hemispherical one, but is not particularly limited as long as the pressure-bonded surface to the purified water opening 15a and the raw water opening 14a has an appropriate spherical surface. It may be a ball type.

Further, it is necessary to select this material in consideration of various characteristics for long-term use. For example, when a hard material is used for the spherical valve body 22, the material is selected in consideration of hardness, wear resistance, and rust prevention.
It is desirable to use stainless steel such as US304 or engineering plastic such as polyacetal resin. In this case, a packing made of a flexible rubber such as NBR is provided on the opening member 21 in order to provide the spherical valve element 22 and the water purification opening 15a or the raw water opening 14a with a sufficient water sealing property. preferable.

When a flexible material is used for the spherical valve body 22, it is preferably selected in consideration of pressure resistance, moldability and adhesion, and is preferably made of silicone rubber or the like. In this case, the opening member 21 is made of a hard material so that the spherical valve body 22 and the purified water opening 15a or the raw water opening 14a have sufficient water-sealing properties. Selected in consideration of the nature, for example, SU
It is preferable to use stainless steel such as S304 or engineered plastic such as polyacetal resin.

The arm 23 comprises a housing 25 for holding the above-mentioned spherical valve element 22 and a connecting part 26 connected to a switching lever 27. A water hole 25a is provided at the center of the housing 25. Raw water supplied from the hose passes through the water hole 25a, and passes through the spherical valve element 22.
And the water pressure is applied to the spherical valve body 22.

The arm 23 is connected to a switching lever 27 at a connection portion 26. The connection portion 26 is housed in a storage portion 29 provided in the switching device 20, and is connected and fixed to a connection hole 27 a of the switching lever 27. The arm 23 is installed so as to interlock with the rotation of the switching lever 27 at a constant angle about the continuous hole 27a. As a material of the arm 23, an engineering plastic such as a polycetal resin or a polycarbonate resin is used in consideration of pressure resistance, moldability, and wear resistance.

The switching lever 27 is housed in a storage portion 29 of the switching device 20, and has a lever portion 27b.
Is connected to the outside and is rotatable at a fixed angle about the center of the continuous hole 27a as shown in FIG. The rotation of the switching lever 27 is interlocked with the arm 23 so that the spherical valve body 22 can be moved.
The material of the switching lever 27 is preferably made of plastic such as ABS resin or PP resin in consideration of pressure resistance and moldability.

An elastic ring 28 is provided above the fixed portion between the arm 23 and the switching lever 27 so that the arm 23 and the switching lever 27 can be smoothly interlocked. The elastic ring 28 is made of silicon, NB
A commercially available O-ring for water sealing made of a material such as R can be used, but is not limited thereto.

As shown in FIG. 3, the switching lever 27
Rotates from the portion C to the portion D in the figure about the center of the continuous hole 27a. When the switching lever 27 is moved to the portion C, the arm 23 moves toward the raw water opening 14a, whereby the spherical valve body 22 also moves and moves below the raw water opening 14a. Then, at the time of water passage, the water passage hole 25 of the arm 23 is provided.
The spherical valve element 22 is pressed against the raw water opening 14a by the pressure of the raw water flowing from a, and the raw water opening 14a is closed. In this case, the raw water supplied from the hose passes through the water purification opening 15a, passes through the water purification channel 15, is purified and becomes purified water, and is discharged from the shower discharge unit 2.

When the switching lever 27 moves to the D portion, the arm 23 moves to the water purification opening 15a side, whereby the spherical valve body 22 also moves below the water purification opening 15a. . When the water is passed through the arm 23
The spherical valve body 22 is pressed against the water purification opening 15a by the pressure of the raw water flowing from the water passage hole 25a of the water purification opening 15a.
Is blocked. In this case, the raw water supplied from the hose passes through the raw water opening 14a and is discharged from the shower discharge unit 2 through the raw water passage 14.

Raw water opening 14a and purified water opening 15a
Is provided on the opening member 21. The position is provided in the movable range of the spherical valve body 22 moved by the switching lever 27 (the range in which the spherical valve body 22 moves when the switching lever 27b moves between the portion C and the portion D).

According to such a switching device 20, the spherical valve body 22, the raw water opening 14a,
The water purification opening 15a is formed, and the sealing portion is spherical, so that a good water sealing property can be obtained, and even if used for a long period of time, the shape of each member does not deteriorate and water leakage occurs. Absent. Further, since the water sealing property is obtained by the water pressure, the higher the water pressure, the stronger the water sealing property. Therefore, no water leakage occurs even under a high water pressure.

FIG. 4 is a sectional view showing an example of the purified water shower head of the present invention, and shows an example in which a spring 24 is disposed on the arm 23 of the purified water shower head 51 shown in FIG. The spring 24 is connected to the spherical valve body 22 and is held in the accommodating portion 25 of the arm 23. The spring 24 connects the spherical valve element 22 to the water purification opening 15a.
Alternatively, it is for pressure bonding to the raw water opening 14a. As the spring 24, a commercially available stainless steel compression coil spring or the like can be used, but is not limited thereto. The degree of crimping can be freely set by designing the spring constant and the like. Thus, by providing the spring 24, the spherical valve body 22 can be pressed against the opening member 21 by the repulsive force of the spring 24,
When the spherical valve body 22 falls into the purified water opening 15a or the raw water opening 14a, the switching lever 2 is switched to the user.
7 gives a clear click feeling. Therefore, there is no need to provide a complicated click mechanism, and the switching device 2
Zero space saving and low cost.

The spherical valve body 22 and each opening (14a,
15a) is performed by the water pressure of the raw water flowing from the water passage hole 25a and the repulsive force of the spring 24. Therefore, as the water pressure increases, the pressure of the spherical valve body 22 increases and the water sealing property increases. Becomes stronger. Further, even at a low water pressure, the spherical valve body 22 is pressed against each of the openings (14a, 15a) by the repulsive force of the spring 24, so that good water sealability can be obtained. Further, the spring 24
When switching is performed by the repulsion force, the spherical valve element 22 falls into each of the openings (14a, 15a), so that a clear sense of switching is transmitted to the user, and the switching device 20 is easily and clearly crisp. A click mechanism can be provided.

In the water purifying showers 51 and 52 of the present invention, it is preferable that a part of the outer wall of the shower main body 1 is constituted by the transparent member 16. This transparent member 16
, The degree of contamination of the dechlorinating agent 13 in the cartridge,
The state of disappearance becomes visible, and the time for replacement can be known. Examples of the transparent member 16 include an acrylic resin and a polycarbonate resin. Also, the transparent member 16
When plastic is used for both the shower body 1 and the shower body 1, it is desirable to partially provide the transparent member 16 on the outer wall of the shower body 1 by a two-color molding method. According to this method, it is possible to obtain a material having excellent molding processability and pressure resistance at low cost. Further, the size and position of the transparent member 16 may be determined as appropriate, and are not particularly limited.

The water purifying showers 51 and 52 of the present invention can be used by detachably attaching the hose connecting portion 7 to a hose for supplying tap water. The raw water of the tap water supplied from the hose is supplied to the switching device 20, where it is supplied to the shower body 1 through either the raw water opening 14a or the purified water opening 15a. Here, the raw water supplied from the raw water opening 14a is:
It passes through the raw water channel 14 as it is, and is discharged from the shower discharge unit 2 to the outside. The water supplied from the water purification opening 15a passes through the water purification channel 15 and is purified by the dechlorination agent 13 to become purified water, which is discharged from the shower discharge unit 2 to the outside. As the material of the shower body 1, the shower discharge section 2, and the hose connection section 7, it is desirable to use plastic such as ABS resin and PP resin in consideration of pressure resistance and moldability.

[0028]

As described above, the switching device used in the water purifying shower of the present invention can withstand long-term use, maintain the water-sealing performance, and have a switching performance without water leakage even under high water pressure. It is excellent. In addition, by providing a spring in the switching device, a good click-sealing property is exhibited even at low water pressure, and a simple click mechanism that can save space and reduce cost is provided. Since the water purification shower of the present invention has the switching device having the excellent switching performance as described above, it is easy to use.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing an example of a purified water shower head of the present invention.

FIG. 2 is a schematic sectional view showing an example of the water purification shower head of the present invention.

FIG. 3 is a schematic sectional view showing an example of a purified water shower head of the present invention.

FIG. 4 is a schematic sectional view showing an example of a purified water shower head of the present invention.

FIG. 5 is a schematic sectional view showing an example of a conventional water purification shower head.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Shower body, 2 ... Shower discharge part, 7 ... Shower connection part 13 ... Dechlorination treatment agent, 14 ... Raw water channel, 15 ... Water purification channel, 1
4a: Raw water opening 15a: Water purification opening, 16: Transparent member, 20: Switching device, 21: Opening member 22: Spherical valve element, 23: Arm, 24: Spring, 2
5 accommodation section 26 connection section 27 switching lever 28 elastic ring 29 switching accommodation section

Claims (4)

[Claims] 1. A water purification passage through which a cartridge containing a dechlorinating agent is removably mounted inside a shower head main body, wherein water supplied to the shower head main body passes through the dechlorinating agent in the cartridge. A shower head having a raw water passage that does not pass therethrough, comprising a switching device for selecting between the purified water passage and the raw water passage, wherein the switching device communicates with the raw water opening and the purified water passage leading to the raw water passage. An opening member having a water purification opening, a spherical valve body for closing either the raw water opening or the water purification opening of the opening member, and a through-hole for holding the spherical valve body and transmitting water pressure to the spherical valve body. An arm having a water hole, a switching lever connected to the arm and operable from the outside, and an elastic ring for supporting the rotation of the arm and keeping the switching lever watertight. Becomes, the by operating the switching lever from the outside, water purification shower head is characterized in that it is the arm and the spherical valve body is moved to close either the purified water passage or the original water channel. 2. The water purifying shower head according to claim 1, wherein a spring for crimping the spherical valve body to the opening member is disposed on the arm. 3. The water purifying shower head according to claim 1, wherein the spherical valve body is made of stainless steel or engineering plastic, and a rubber packing is provided on the opening member. 4. The water purification shower according to claim 1, wherein a part of an outer wall of the shower head main body is formed of a transparent member, and a part of the dechlorinating agent is made visible. head.